WISENMESHNET® Product Specification · 2016-12-07 · WISENMESHNET® Product Specification Wisen Innovation Ltd, 4 Chapel Close Litlington Royston Herts, United Kingdom SG8 0QJ Office

WISENMESHNET® Product Specification

Wisen Innovation Ltd, 4 Chapel Close Litlington Royston Herts, United Kingdom SG8 0QJ

Office D501, 530 Mansion, Taihu International Hi-tech Zone, New District, Wuxi, China Postcode 214135 1


Wisen Innovation Ltd

28th November 2016




Revision History and Clarification

Rev. Issue Date Version Control Written

By

Revised

By

V24 18/09/2016

Change from V23 to V24;

Small photo deleted from the feature table to save space;

Add more photos at the end of each table;

Delete the battery life from each production specification table and

conclude them battery life session;

Add newly released product features, including: B-Type Gateway,

Laser Distance Node, 2-Channel 4-20mA/1-5V Interface Node and

6-Channel Foil Gauge Node;

Add the battery life estimation charts for the new products;

Node data storage changed from “> 300 messages during meshing”

to “Min. 450 Messages during Meshing”.

Yan Wu Steve

Thurgood

V25 18/09/2016

Text formatting

Adding B-Gateway 110-240VAC to 12VDC adapter, RS232 to USB,

TTL to USB connection figures.

Yan Wu Brian

Jones

V26 01/11/2016 Providing individual product specification documents and the

combined version.

Xiaoyan

Huang;

Jitong

Sun

Yan Wu

V27 28/11/2016 Adding the new product Laser Tilt Node Specification.

Adding the Mini Smart Gateway Specification.

Xiaoyan

Huang;

Jitong

Sun

Yan Wu




Table of Terminology

English 中文 Abbreviation

Wireless Sensor Network Related

1 Wireless Sensor Network 无线传感网络 WSN

2 Mesh Networking 网状网络 -

3 Ultra-Low Power 超低功耗 -

4 Artificial Intelligence 人工智能 AI

5 Hop 中继跳数 -

WSN Monitoring Related

1 Sampling Time Interval 监测频率 T

2 Radio Frequency 无线频段 F

3 Back_Time 数据回传时间 -

4 ED_Level 入网信号强度门限值 -

5 Relay_Factor 中继时间 -

Product Related

1 Smart Gateway 智能终端 Gateway/GW

2 WSN Dual-Axis Tilt Sensor Node 无线传感网络双倾角传感支点 Tilt Node

3 WSN Laser Distance Sensor Node 无线传感网络激光测距传感支点 Laser Distance Node

4 WSN Vibrating Wire Interface Node 无线传感网络振弦式采集支点 VW Interface Node

5 WSN 4-20mA/1-5V Interface Node 4-20mA/1-5V 无线传感网络采集支点 4-20mA/1-5V Interface Node

6 WSN 120Ω Foil Gauge Interface Node 120Ω 应变无线传感网络采集支点 120Ω FG Interface Node

7 WSN Visual Node 无线传感网络可视化功能支点 Visual Node

Sensor Related

1 Vibrating Wire Gauge 振弦式应变传感器 VW Gauge

2 Foil Gauge 电阻式应变传感器 FG

Certificate Related

1 Electromagnetic Compatibility 电磁兼容 EMC

2 London Underground Ltd Product

Approval 伦敦地铁装备认证 LUL Approval

Material and Coating

1 Epoxy Polyester Powder Coating 环氧聚酯树脂粉末涂料 -

2 Aluminium-Alloy Die Castings 12

铝合金压铸件 12 ADC12

3 Ingress Protection Rating 防护等级 IP




WISENMESHNET® Node Series

Sensor Node (S-Node) Series Interface Node (I-Node) Series Function Node (F-Node) Series

Dual-Axis Tilt Mini Dual-Axis

Tilt

Laser

Distance

1/4-Channel Vibrating

Wire 2-Channel 4-20mA 2-Channel 1-5V

6-Channel 120Ω Foil

Gauge Visual Node

Range [-10,10]°

Accuracy 0.01°

[-10,10]°

0.05°

[0.1,30]m

1.5mm

[400,6000]Hz

0.015%@Any Reading

[4,20]mA

0.1%@Any Reading

[1,5]V

0.1%@Any Reading

[119.0,121.0]Ω

0.001Ω

6x Green/Blue/Red LEDs Onsite

Triggering

WISENMESHNET® Smart Gateway

Internal Battery (Non-

rechargeable/Rechargeable)

Solar Power/AC

Power

Mobile Network (default factory

setting) 2G/2.5G/3G/4G Module

Standard RS232 Output

3rd Party Converter: 232 to: 485/Ethernet/Fibre Optics/WIFI/433MHz Module, etc.

SD Storage:

1.5Yr Data

WISENMESHNET® Server

Linux Server (Recommended) + Data FTP Local Windows Server

WISENMESHNET® Visualisation Platform

Login Control Summary Table Data Plot 2D Site Planning Mesh Topology Data Exporting Calibration Download Remote Control Warning Project Management

Note: All Wisen products are powered by WISENMESHNET® Wireless Sensor Network Communication Protocol.




WISENMESHNET® A-Type Smart Gateway @25°C

Basics

AC Power 100V to 240V(AC)

DC Power 7V - 18V (9-12V hardware version released before August 2015)

Internal UPS Min. 7 days Meshing

Working Current (DC) Ave. 45mA@9V; Max. 2Amp@GPRS Registration

Storage 8GB (Min. 1.5 Yrs Storage)

L x W x H 180 x 140 x 60mm

Weight 1.5kg

Cable Gland Qty. 1 x AC Power In - EMC-CMA14

Qty. 1 x DC Power In - EMC-CMA12

Wire Connection Qty. 1 x AC In - Spring type wiring terminal

Qty. 1 x DC In - Spring type wiring terminal

External Interface

Wireless Module

2G ONLY GSM/GPRS (850/900/1800/1900MHz)@9600bps

Tested SIM: Standard China Mobile, China Unicom; UK Vodafone, O2, Orange, T-

Mobile, 3.

Wired Port RS232/USB

WSN Interface

WSN Protocol WISENMESHNET® Protocol

Standard System Parameter

Temperature Measurement Range: -40 to 80°C, Accuracy: +/-2°C

Voltage Accuracy: +/-0.1V

Re-Calibration Method

Inspection Period Every 3 Years by Manufacturer (or inspected by arranged methods)

Industrial Standard

Casing and Painting Materials Aluminium-Alloy Die Castings 12 (Epoxy Polyester Powder Coating)

IP Rating >= IP66

Operating Temperature -40 to 80°C

Fire Proof Approved

Certificates CE, London Underground Product Approval

Applications

A gateway is used as a key unit in Wireless Sensor Network system. It is responsible for the command issuing

(such as T, F modifications) to and data collection from all the nodes involved in a mesh network; meanwhile, it

forwards the data and system information to the remote server via mobile network or the local server via

standard RS232 connections.

Notice

Ensure that the SD memory card is unplugged if a gateway is reprogrammed (this action does not apply to the

mesh reprogramming on a gateway)




Different Releases of Gateway Internal Connection Layouts:

Figure. Version Two: Gateway Layout (Released after 2015). (Note: When connected to a remote server,

“SIM900_NET” LED will be constantly on.)

Figure. Version One: Gateway Layout (Released before 2015). (Note: When connected to a remote server,

“SIM900_signal” LED will be flashing slowly. However, this cannot be considered as a definite connection, for this

information, a customer needs to check from the visualisation web page or check with our system administrator.)




Figure. Version One: Gateway - AC/DC Power Wiring.

Installation Guidance

Figure. A-Type Gateway Product Photos.

Figure. Gateway Fixing Bracket.




WISENMESHNET® B-Type Smart Gateway @25°C

Basics

Primary Battery Power Qty. x 4 (3.6V D-Cell ER34615M, 2Amp Output)

Secondary DC Power 7V - 32VDC (Max. Current <= 2Amp)

Or with external 100-240VAC adaptor

Mobile Network Stop Voltage >= 5.5VDC

Mesh Stop Voltage 4.5VDC

Storage 8GB (Min. 1.5 Yrs Storage)

L x W x H 180 x 140 x 60mm

Weight <= 2.0kg

Cable Gland Qty. 1 x EMC-CMA12 for external RS232 connection

Qty. 1 x EMC-CMA14 for external DC input power connection

Wire Connection DC In - Spring type wiring terminal

External Interface

Wireless Module Compatible with 2G/2.5G/3G/4G of Micro SIM card

Wired Port RS232

WSN Interface


Low Power Mode T>=5min and Server Connection Ratio DTU_T = [1,99]T






Industrial Standard


IP Rating >= IP66


Fire Proof Approved


Applications



forwards the data and system information to the remote server via mobile network or the local server via

standard RS232 connections.

Non-Standard Accessory

A. RS232 to USB connection cable from a gateway to a PC for local parameter configuration; [Software to use:

WISENMESHNET® Standard Serial Port Software V3.0.11 or above]

B. TTL to USB 1m cable to read the mesh data from a gateway in parallel to the mobile network data

transmission; [Software to use: WISENMESHNET® Standard Serial Port Software V3.0.11 or above]

C. Indoor test adaptor: 110-240VAC to [email protected];

D. Outdoor adaptor, IP68: 110-240VAC to [email protected].

mailto:[email protected]

mailto:[email protected]




Gateway PCB Layout

Figure. B-Gateway Layout (Released after Oct. 2016).

Highlights

1. When connected to a remote server, “NET” LED will be constantly on;

2. Unlike A-Gateway which takes “IP Address” and “Port Number” as remote server destination, B-Gateway uses

“Domain Name” and “Port Number” instead.

Figure. 110-240VAC to 12VDC@5A Adapter Connection.

Figure. RS232 to USB Connection.




Figure. TTL to USB Connection.


Figure. B-Gateway Product Photos.

Figure. Gateway Fixing Bracket.




WISENMESHNET® Standard & Mini Dual-Axis Tilt Node @25°C

Basics Standard Dual-Axis Tilt Node Mini Dual-Axis Tilt Node

Battery Power Qty. x 1 (3.6V D-Cell ER34615) Qty. x 1 (3.6V 1/6D-Cell 32L100)

Accuracy Stop Voltage 2.7VDC


Battery Connection Standard Metal Battery Holder Customised Internal Battery Holder

Working Current (DC) Max. 23mA (Typ. 18mA)

Storage Min. 450 Messages during Meshing

L x W x H 80 x 75 x 57mm 52 x 50 x 40mm

Weight 0.43kg 95g

Primary Sensor

Sensor Type MEMS Dual-Axis Tilt Sensor, A-axis; B-axis Tilt Values

Range -30°- +30°

Accuracy

0.01° (36″ or 0.1745mm/m) over readings [-

10°, +10°]; 0.05° (180″ or 0.8725mm/m) over

readings [-30°, +30°]

0.05° (180″ or 0.8725mm/m)

Resolution 0.0025° (9″ or 0.0436mm/m)

Long Term Stability < 0.014° (50″ or 0.2443mm/m)


Temperature Range: -40 to 80°C, Accuracy: +/-2°C

Voltage Accuracy: +/- 0.1V

WSN Interface


Industrial Standard

Casing and Painting

Materials

Aluminium-Alloy Die Castings 12 (Epoxy

Polyester Powder Coating) ABS

IP Rating >= IP66


Fire Proof Approved




Tilting Orientation

Tilting Mark




As shown below, readings (of the blue axe) get smaller from Status 1 to Status 2; increase from Status 1 to Status 0.

Applications

Infrastructure tilting condition monitoring of accuracy 0.01°, such as retaining wall, supporting column, river

embankment etc.

From the 1st level of data conversion, the movement of one end of a beam/crossbar can be monitored (with

accuracy of 0.17mm/m), such as land sliding, railway track monitoring.

With our latest developed mathematical model, we can achieve a 0.3mm accuracy for the Horizontal

Convergence of a metro tunnel of 6 segments in Shanghai Metro.

Installation Guidance: Ensuring the tilt node is installed parallel to the horizontal ground plane.

Figure. Standard Dual-Axis Tilt Node Product Photos.

Figure. Mini Dual-Axis Tilt Node Product Photos.




Figure. Standard Tilt Node Rotational Bracket.

Figure. Mini Tilt Node.

Figure. Levelling on Different Angular Walls (Ensuring the node is installed parallel to the horizontal ground plane).




Figure. WISENMESHNET® Tilt Node (Horizontal Type) released before 12/12/2015. Angular Wall Mounting (refer to

Wisen’s Angular Bracket)




WISENMESHNET® 1-Channel/4-Channel Vibrating Wire Interface Node @25°C

Basics 1-Channel VW Interface Node 4-Channel VW Interface Node

Battery Power Qty. x 1 3.6V D-Cell ER34615 Qty. x 2 3.6V D-Cell ER34615



Battery Connection Standard Metal Battery Holder



L x W x H 100 x 100 x 60mm 180 x 140 x 60mm

Weight 0.60kg 1.20kg

Cable Gland Qty. 1 x EMC-CMA12 for external VW sensor

connection

Qty. 4 x EMC-CMA12 for external VW

sensor connections

Wire Connection Spring type wiring terminal

Externally Connected VW Sensor

Sensor Type Vibrating Wire Typed

No. of Inputs 1 Channel 4 Channels

Sensor Connection

VW Type of 5 wires: VW+, VW-, T+, T-, GND.

Note: Temperature wires (or a 3kΩ resistor) must be connected to the T+ & T- terminals

so VW node can work properly; Ground wire between a node and a sensor must be

connected.

Parameter Resonant Frequency (Hz)

Range 400 to 6000Hz

Accuracy 0.015% at Any Reading

Resolution 0.002Hz@400Hz or 0.05Hz@6000Hz

Cable Length <= 1.1km

Thermistor Sensor

Parameter Thermistor Resistor of 3kΩ @25°C

Range 0.052kΩ to 113.096 kΩ

Accuracy 0.12kΩ or 2°C



WSN Interface




Industrial Standard

Casing and Painting

Materials Aluminium-Alloy Die Castings 12 (Epoxy Polyester Powder Coating)

IP Rating >= IP66


Fire Proof Approved





Applications

WISENMESHNET® VW interface node is Compatible with all different brands & types of high quality Vibrating

Wire sensors, therefore it can be applied in all different related monitoring projects.

Examples of VW sensors: Strain Gauge; Displacement Transducers; Piezometers; Settlement Sensors; Pressure

Cells; Load Cells. Suggested VW sensor supplier: http://www.soilinstrument.com/


Figure. 1-Channel VW Interface Node Product Photos.

Figure. 1-Channel VW Interface Node Brackets.

Figure. Left: VW Sensor Connections (VW+, VW-, T+, T-, GND). Right: Sensor Channel Sequence on a 4-Channel VW

Interface Node.

http://www.soilinstrument.com/




WISENMESHNET® 2-Channel 4-20mA/1-5V Interface Node @25°C

Basics

Battery Power Qty. x 4 (3.6V D-Cell ER34615M)

Alternative DC Input 12-32VDC@min. 1A

DC Output 12VDC±0.3V @max. 0.3A (Note: confirm against the sensor specification)

Power On Time to External Sensor 2s to reach stable reading (Note: confirm the sensor stable time before use)





L x W x H 180 x 140 x 60mm

Weight 1.5kg

Cable Gland Qty. 2 x EMC-CMA12 for external sensor connections

Qty. 1 x EMC-CMA12 for external DC input power connection


Externally Connected Sensor

Sensor Type 4-20mA / 1-5V Sensor Type

No. of Inputs 2 Channels

Sensor Connection DC Out, IN, GND

Parameter

mA / V

(Use “4-20mA to 1-5V Switch” for each channel on the PCB to change the

sampling parameter.)

Range 4.0000 to 20.0000mA / 1.0000V to 5.0000V

Accuracy 0.1% at Any Reading

Resolution 0.0003mA or 0.0001V

Cable Length <= 4.5m


Temperature Range: 40 to 80°C, Accuracy: +/-2°C




WSN Interface


Industrial Standard


IP Rating >= IP66


Fire Proof Approved


Applications

WISENMESHNET® 4-20mA/1-5V Interface Node is compatible with all different types of 4-20mA/1-5V sensors

of 12VDC and <=300mA power supply, hence it can be applied to all the corresponding monitoring projects.




Example of 4-20mA sensors: Manufacturer such as Micro-Epsilon. http://www.micro-epsilon.com/temperature-

sensors/index.html?sLang=us

Special Notice on data format corresponding to the 4-20mA/1-5V Switch

Switch Status CH1 Reading CH2 Reading

00 1-5V 1-5V

01 4-20mA 1-5V

02 1-5V 4-20mA

03 4-20mA 4-20mA


Figure. 2-Channel 4-20mA/1-5V Interface Node Product Photos.

Figure. Left: Fixing Bracket. Right: Individual 4-20mA/1-5V Sensor Wire Connections

http://www.micro-epsilon.com/temperature-sensors/index.html?sLang=us





WISENMESHNET® 6-Channel 120Ω Foil Gauge Interface Node @25°C

Basics

Battery Power Qty.x2 (3.6V D-Cell ER34615)






L x W x H 180 x 140 x 60mm

Weight 1.2kg

Cable Gland Qty. 2 x EMC-CMA12 for external sensor connections


Externally Connected 120Ω Foil Gauge Sensor Parameter

Sensor Type 120Ω Foil Gauge

No. of Inputs 6 Channels

Sensor Connection IN+, IN-

Sampling Bridge Arrangement 1/4 Bridge

Parameter Resistance in Ω

Range 119.0-121.0Ω

Accuracy 0.1% ±0.0005Ω

Resolution <0.001Ω

Stability ±0.0005Ω

Cable Length <= 3m






WSN Interface


Industrial Standard


IP Rating >= IP66


Fire Proof Approved

Certificates CE

Applications

WISENMESHNET® 120Ω Foil Gauge Interface Node is compatible with all 120Ω Foil Gauge sensors, hence it can

be applied to all the related monitoring projects.




WISENMESHNET® Laser Distance Node @25°C

Basics







L x W x H 100 x 100 x 60mm

Weight <= 0.6kg

Primary Sensor

Sensor Type Distance

Laser Class Class 2

Range 0.1m-30m

Accuracy +/-1.5mm

Resolution 1mm




WSN Interface




Industrial Standard


IP Rating IP66

Operating Temperature 0 to 50°C

Fire Proof Approved

Certificates CE

Applications

Long term distance monitoring between two specific points, such as horizontal convergence of a tunnel.

Warning!

A. This is an automated system, the laser beam must be set to point at an appropriate non-reflective surface;

B. The protection window glass on a node must be kept clear all the time;

C. Distance 0mm starting plane: plane of the protection window glass.




Special Notice on the data format

Laser Time The time period (in the unit of seconds) that a laser module has been switched on at each T.

Typically, of value: 2.7-2.9s.

Sampling Status The number of samples that has been successfully measured. Typically, of value: 5.


Figure. Laser Distance Node Product Photos.

Figure. Laser Distance Node Fixing Bracket.




WISENMESHNET® Laser Tilt Sensor Node @25°C (Will be released in the first quarter of 2017)

Basics







L x W x H 100 x 100 x 60mm

Weight <= 0.7kg

Primary Sensor

Sensor Type Distance/ MEMS Dual-Axis Tilt Sensor, A-axis; B-axis Tilt Values

Laser Class Class 2

Laser Range 0.1m-30m

Laser Accuracy +/-1.5mm

Laser Resolution 1mm

Tilt Range -30°- +30°

Tilt Accuracy 0.01° (36″ or 0.1745mm/m) over readings [-10°, +10°]; 0.05° (180″ or

0.8725mm/m) over readings [-30°, +30°]

Tilt Resolution 0.0025° (9″ or 0.0436mm/m)

Tilt Long Term Stability < 0.014° (50″ or 0.2443mm/m)




WSN Interface




Industrial Standard


IP Rating IP66

Operating Temperature 0 to 50°C

Fire Proof Approved

Certificates CE

Applications

A. Long term distance monitoring between two specific points, such as horizontal convergence of a tunnel.

B. Infrastructure tilting condition monitoring of accuracy 0.01°, such as retaining wall, supporting column, river

embankment etc.

From the 1st level of data conversion, the movement of one end of a beam/crossbar can be monitored (with

accuracy of 0.17mm/m), such as land sliding, railway track monitoring

With our latest developed mathematical model, we can achieve a 0.3mm accuracy for the Horizontal

Convergence of a metro tunnel of 6 segments in Shanghai Metro.




Warning!

A. This is an automated system, the laser beam must be set to point at an appropriate non-reflective surface;

B. The protection window glass on a node must be kept clear all the time;

C. Distance 0mm starting plane: plane of the protection window glass.

Special Notice on the data format

*00 – Node is working in a good condition

Code_Info Problem Description

01 Calculate error Target moved too fast.

02 Weak signal reception Target used sensitive film or select another good test point.

03 Strong signal reception Target too reflective, target used sensitive film or not at the light point.

04 Cannot communicate

with the laser module Cable may have gone loose or check if there is any bad physical connection.

05 Single reading achieved Single success on the sampling procedure.

06 Max.-Min.>=10mm The difference of sample values is greater than 10mm.

Laser Time The time period (in the unit of seconds) that a laser module has been switched on at

each T. Typically, of value: 2.7-2.9s.

Sampling Status The number of samples that has been successfully measured. Typically, of value: 5.

Tilting Orientation

Tilting Mark

As shown below, readings (of the blue axe) get smaller from Status 1 to Status 2; increase from Status 1 to Status 0.





Figure. Laser Tilt Sensor Node Product Photos.

Figure. Laser Tilt Sensor Node Fixing Bracket.




WISENMESHNET® Mini Smart Gateway @25°C

Basics

Primary DC Power 5VDC

L x W x H 110 x 77 x 25mm

Weight <= 180g

Cable Gland Qty. 1 x USB Connection

External Interface

Wired Port USB

WSN Interface







Industrial Standard

Casing and Painting Materials Aluminium


Applications



forwards the data and system information to the local PC via standard USB connection.

Non-Standard Accessory

A. USB connection cable from a gateway to a PC for local parameter configuration. [Software to use:

WISENMESHNET® Standard Serial Port Software V3.0.11 or above]

Figure. Mini Gateway Product Photo and the relate USB Connection.




Point to Point Radio Feature

Radio Frequency 2.405-2.480GHz (16 Channels of 5MHz Bandwidth)

Channel Setting Channel 26 by default

Transmit Power Typical <1.4mW (i.e., 1.5dBm); Max. 2mW

Receive Resolution -100dBm

No. of Mesh Hop

Supported

10 Hops

(e.g., the radio link from a gateway to the 1st layer node is called the 1st hop)

Antenna Description

2.4GHz-Antenna Omni-directional 5dBi (20cm in length)

2/2.5/3/4G-Antenna Omni-directional 3.5dBi (20cm in length)

Antenna Connector SMA (M)

WISENMESHNET® Wireless Sensor Network Protocol Standard

Electromagnetic Compatibility

WISENMESHNET® system is designed of ISM2.4GHz, it strictly follows IEEE802.15.4 Standard, which includes 16

channels (Channel 11 to Channel 26 representing 2.405GHz to 2.480GHz) of 5MHz bandwidth at each channel.

Notice: Within any electrically noisy environment, nodes with sensors must be >= 0.3m away from the source of the

noise.

Network Life Span

Laboratory Power Consumption Analysis (please apply the data below ONLY as a reference)

Hardware Settings: Keysight 34401A Multimeter; Atten APS3005D Power Supply; Windows PC.




Mini Dual-Axis Tilt Sensor Node/ Standard Dual-Axis Tilt Sensor Node/ 1-Channel VW Interface Node/ 4-Channel

VW Interface Node:

Best Case: It is the battery life calculated for a node taking no sub-mesh network of its own, i.e., a leaf node.

Worst Case: It is the battery life calculated for a node taking 9 hopes of sub-mesh network of its own.




B-Type Smart Gateway

Figure: B-Gateway Battery Life.

(Note: battery life can be further extended by a factor of 1.5, if a B-Gateway is 1/6 times (i.e., DTU_T=6) often making

connections to a server.)

Laser Distance Node

Figure: Best Case (i.e., taking < 3.0s to complete a data reading at each T, as a leaf node).

(Note: The worst case is determined by the combination of two factors: A. 10-hop mesh topology of a factor 1.2 worse

than the best case battery expectancy); B. the time that takes to measure the distance for a laser module, typically it

is 2.7-2.9s, in general this is affected by target surface and light pollution, this can be a factor of 10-15 worse to normal

battery life of a laser distance node.)




2-Channel 4-20mA/1-5V Interface Node

Figure: Best Case (as a leaf node).

(Note: 1. The test is done when two 4-20mA temperature sensors are both connected to a node at a room

temperature of 25°C. The sensors are as the link below: http://www.micro-epsilon.com/temperature-

sensors/index.html?sLang=us

2. The worst case is determined by 10-hop mesh topology, it is a factor of 1.2 worse than the best case battery

expectancy.)

6-Channel 120 Ω Foil Gauge Interface Node

Figure: Best Case (as a leaf node).

(Note: The worst case is determined by 10-hop mesh topology. It is a factor of 1.3 worse than the best case battery

expectancy.)






Network Data Arrival Rate

Into WISENMESHNET® greater than 99.5%

Single Node Environmental Coverage

A. Clear office corridor, line of sight, directly placed on the ground, >= 25m;

B. Clear office corridor, line of sight, 1m above the ground, >= 70m;

C. Inside Metro Tunnels (antenna placed at 10cm away from the wall) >= 100m;

D. Outdoor (Tx and Rx unit placed at 2m above ground) >= 250m.

Data Format

Basic Information Time Stamp: Universal Time Coordinated (i.e., UTC)

SN and Short ID

Network

Information

Gateway includes:

1. Mesh Network Information, i.e., no. of hops, sequential number of transmission,

parent node SN, received power strength, transmit power strength.

2. System Information, Sampling Time Interval (T), radio frequency (F), Back_Time,

ED_Value (radio power strength threshold), Relay_Factor.

Node includes: no. of hops, sequential number of transmission, parent node SN, received

power strength, transmit power strength and no. of messages unsent in a node.

Sensor Information Node Type

Sensor Information：

1. Power information includes: battery voltage, key reference voltage, etc.;

2. Sensor parameters.

Remote Commands

Time Interval Systematically changing the sampling time interval (T) of the nodes under a gateway.

DTU_T Server Connection Ratio to Time Interval

Radio Frequency Systematically changing the radio channel (F) of the nodes under a gateway.

Back_Time Defining the time taken for all the data from the nodes to reach a gateway.

ED_Value Systematically changing the radio power threshold so it can join into a mesh network so a mesh

can be optimised.

Relay_Factor Systematically changing the relay time for all the node in a gateway so a mesh can be

optimised.

APN Settings Allowing a customer to change the APN/User Name/Password for the 2/3/4G Network setting.




Casing Back Hole Dimension*

180x140x60mm Case Back Hole Dimensions 52x50x40mm Case Back Hole Dimensions

100x100x60mm Case Back Hole Dimensions 80x75x57mm Case Back Hole Dimensions

* The table for back hole fixing dimensions are used for customers to design their own brackets in various applications.

Documents

WISENMESHNET® Product Specification · 2016-12-07 · WISENMESHNET® Product Specification Wisen Innovation Ltd, 4 Chapel Close Litlington Royston Herts, United Kingdom SG8 0QJ Office